Setting up genmitsu 6060 - lightburn 1.7

Hi There, I have been trying to setup my sainsmart 4030 upgraded to 6060. I have found that many articles which have different instructions for setting up a negative coordinate machine using offset values. But it appears that lightburn now has the “cnc machine” option which will automatically do the offsets for you. All articles say that the origin should be set to lower left, but the machine runs backwards when I do this. If it set the origin to right rear and set the “cnc machine” it seems to work correctly. Here are the settings that seems to run the machine in the correct directions with what seems like correct range. But after running a laser cut it tries to return to 0,0 and hits the limit switches.

I tried to clear all set GRBL settings before the latest shown settings were made to make sure my initial testing with offsets were cleared using $RST=$.

Any guidance on why the machine is hitting the limit switches after the laser runs?

Device settings:

Homed get position capture with get position showing 3,3 rather 0,0 after homed:

More info.
$H

ok

<Idle|MPos:-3.000,-3.000,-3.000|Bf:15,127|FS:0,0|Ov:100,100,100>

ok

ok

ok

<Idle|MPos:-12.718,-3.000,-3.000|Bf:15,127|FS:0,0>

ok

ok

ok

<Idle|MPos:-12.718,-12.718,-3.000|Bf:15,127|FS:0,0>

ok

<Idle|MPos:-12.718,-12.718,-3.000|Bf:15,127|FS:0,0>

ok

$H

ok

$I

[VER:1.1h.20190825:]

[OPT:V,15,128]

Target buffer size found

ok

$$

$0=10

$1=25

$2=0

$3=1

$4=0

$5=0

$6=0

$10=3

$11=0.010

$12=0.002

$13=0

$20=0

$21=1

$22=1

$23=0

$24=100.000

$25=1000.000

$26=250

$27=3.000

$30=10000

$31=0

$32=0

$100=400.000

$101=400.000

$102=400.000

$110=5000.000

$111=5000.000

$112=5000.000

$120=300.000

$121=300.000

$122=300.000

$130=400.000

$131=300.000

$132=100.000

ok

$#

[G54:0.000,0.000,0.000]

[G55:0.000,0.000,0.000]

[G56:0.000,0.000,0.000]

[G57:0.000,0.000,0.000]

[G58:0.000,0.000,0.000]

[G59:0.000,0.000,0.000]

[G28:0.000,0.000,0.000]

[G30:0.000,0.000,0.000]

[G92:0.000,0.000,0.000]

[TLO:0.000]

[PRB:0.000,0.000,0.000:0]

ok

?

<Idle|MPos:-3.000,-3.000,-3.000|Bf:15,127|FS:0,0>

ok

Try disabling the following or set to a different position.


After the Home cycle your laser moves X3 Y3 from the switches. better keep that.
.
A bit of info on Home cycle:
https://github-wiki-see.page/m/gnea/grbl/wiki/Set-up-the-Homing-Cycle

1 Like

Perfect thank you! Not sure if I can piggy back a question or if I should start a new thread.

For some reason the laser does run, but it seems to only run at a fraction of the power that is should be running at. I have set the power to 100% in the cuts/layers settings but the laser is clearly not full power. Are there any other settings in lightburn? If not I guess the I should start looking at the controller/PWM signal?

Thanks for the help!

You´re only using 1/10 of the power of your laser.
Your GRBL $30=10000 change that to $30=1000.
That value must be equal to S value max.
Better yet change only your S value max to 10000 and you can go from laser to CNC in a click.
.
Info on GRBL settings:

https://github-wiki-see.page/m/gnea/grbl/wiki/Grbl-v1.1-Configuration
.
Also change $10=0
And $130=580 $131=580 ( safe values, after you check that everything is fine you may change both to 600).

2 Likes

Awesome. Thank you!

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